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CHAPTER 2: Introduction
The Balun Mate II (MT257A) is designed to be
mounted in a 19" rack. It contains sixteen individual
port-card modules, each of which has a pair of female
coaxial connectors for existing cables.
The coaxial connectors on all of these models are the
1.6/5.6-mm types used extensively in telephone sites.
On the twisted-pair side, each G.703 Adapter and each
of the Balun Mate II’s port-card modules has a standard
RJ-45 jack.
Here’s a summary of the main features of the
Adapters and the Balun Mate II:
• Connect 75-ohm dual-coax G.703 terminations to
120-ohm twisted-pair G.703 terminations.
• Bidirectional signal conversion.
• Uses 1.6/5.6-mm coaxial connectors and standard
RJ-45 twisted-pair connectors, all of which have low
insertion loss.
• Data rates up to 2.048 Mbps.